Update app.py

app.py

@@ -90,7 +90,7 @@ def respond(
     # messages.append({"role": "user", "content": message})
 
     messages =[
-	{ role: "user", content: "What is Python Programming?" },
+	{ "role": "user", "content": "What is Python Programming?" },
     ]
     print(messages)
     response = ""